... measurement, AC Voltage detection, distinguish the inductive circuit and capacitive circuit, sequence of three-phase voltage detection and connection group of transformer detection ... continuous duty :300hLCD 3-1/2 LCD display Measuring range Phase 0~360°current: 0~200mA/2A/10Avoltage0~20V/200V/500VResolution ... 01VMeasurement accuracy (50Hz,23°C±1°C,40-60%RH) Phase: ±3°Current±1%±2dgtVoltage±1.2%±2dgt